40152344 has 8 divisors (see below), whose sum is σ = 75285660. Its totient is φ = 20076168.

The previous prime is 40152337. The next prime is 40152349. The reversal of 40152344 is 44325104.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×40152344² = 3224421457388672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40152349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2509514 + ... + 2509529.

Almost surely, 2^40152344 is an apocalyptic number.

It is an amenable number.

40152344 is a deficient number, since it is larger than the sum of its proper divisors (35133316).

40152344 is a wasteful number, since it uses less digits than its factorization.

40152344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5019049 (or 5019045 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 40152344 is about 6336.5877252667. The cubic root of 40152344 is about 342.4288135926.

Adding to 40152344 its reverse (44325104), we get a palindrome (84477448).

The spelling of 40152344 in words is "forty million, one hundred fifty-two thousand, three hundred forty-four".